fix(server): check if text is already in train data

server/events/addTrainData.js

@@ -6,9 +6,12 @@ export default function addTrainData(eventData) {
 		join(global.__dirname, global.config.fasttext.trainFile),
 		'utf-8'
 	);
-	const data = file.split('\n');
 	const { label, text } = eventData;
 
+	if (file.includes(text)) return;
+	
+	const data = file.split('\n');
+
 	const labelIndex = data.findIndex((data) => data.startsWith(label));
 
 	data.splice(labelIndex === -1 ? 0 : labelIndex, 0, `${label} ${text}`);